您要查找的是不是：
- ballistic trajectory in flight 飞行弹道
- After the ballistic trajectory in midcourse was simulated, the aspect angles of warhead target were calculated in assumed scene by coordinate transformation. 仿真了空间目标飞行弹道后，通过坐标变换得到设定战情下的弹道目标雷达视线角。
- Research on Ballistic Trajectory of Glide Extended-range Projectile with Canard Configuration in Flight 带鸭舵滑翔增程炮弹飞行弹道研究
- The bird extended its wings in flight. 那鸟展翅飞翔。
- The variational rules of projectile's flight velocity along ballistic trajectory and maximal range angle show new peculiarity. 弹丸飞行速度沿全弹道的变化规律和最大射程角出现新变化；
- Astronauts in flight must adjust to weightlessness. 宇航员在飞行中必须适应失重状态。
- The birds rose and dipped in flight. 鸟儿在飞行中时高时低。
- The task of the flight control system is to stabilize the bomb angle movement and flight along with the scheme ballistic trajectory until hitting the target. 简易制导炸弹飞行控制系统的任务就是在飞行过程中实现对炸弹的控制，根据实际飞行弹道与方案弹道数据的偏差量，通过控制规律形成舵偏量，驱动舵机作相应的偏转，进而控制炸弹稳定地飞向预定的目标。
- She photographed the birds in flight. 她拍摄鸟儿飞行的照片。
- The undercarriage on light aircraft does not always retract in flight. 轻型飞机飞行时起落架不一定缩回。
- Measurement error from the photoelectric theodolite is the main error in the ballistic trajectory measurement. 光电经纬仪测量元素误差是外弹道测量中最主要的误差源。
- When the actual and the scheduled ballistic trajectory is not parallel, the measurement result of the system will bring some errors. 对产生这一差值的原因进行了分析，提出了解决这一问题的系统改进方案。
- Will you be showing a movie in flight this evening? 今天晚上飞机上会放映电影吗?
- This paper mainly experiment research and numerical analyzed the submunition ballistic trajectory condition of hard structure munition. 本文主要对攻坚弹药子弹弹道环境进行了初步的试验研究和数值分析。
- In order to measure ballistic trajectory accurately, the measurement precision of the photoelectric theodolite should be investigated. 为了保证外弹道的测量精度，就应对光电经纬仪的测量精度进行合理设计。
- Coupling the ballistic trajectory and the air force,the dynamic stability of the connected double-warhead reentry is analyzed. 依据六自由度弹道方程，建立了双弹头牵连体再入的动力学模型，利用弹道与气动力的耦合，初步分析了双弹头牵连体再入的动稳定特性。
- The plane was fatally crippled when the rear cargo door was pulled off in flight. 当后舱门在飞行中被掀掉时，飞机受到了致命的损伤。
- Established the dynamic model of the whole ballistic trajectory and the penetration model of soil referring to the cavity expansion theory of the cartridge. 建立了该子母弹的全弹道运动模型，并引用空腔膨胀理论，建立了子弹在半无限介质中的斜侵彻模型。
- It's unusual to see swans in flight. 看见天鹅飞是不寻常的。
- The bird extendedits wings in flight. 那鸟展翅飞翔。
